Problems from 2021 ICPC North America Regional Programming Contests (March 5 2022)

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Archery Accuracy0.018711814223%7.2Harden
Average Character0.0054831195640%2.0Easyen
Black and White0.0759252523645%4.8Mediumen
Circle Bounce0.0020024311447%5.1Mediumen
Diagonals0.0018532357030%7.1Harden
Dorm Room Divide0.01476185626414%6.4Harden
Double Password0.0054555263358%1.6Easyen
Fail Them All!0.0089950211924%7.8Harden
Hopscotch 5000.1187871215822%7.0Harden
Overdraft0.0053142129341%2.0Easyen
Problem Set Construction0.019401094541%6.5Harden
Reversibly Cyclic Strings0.00580834042%3.2Mediumen
Rise and Fall0.0088118727924%4.6Mediumen
Scaling Recipe0.005205392845%1.9Easyen
Shortest Missing Subsequences0.0939444614332%6.0Harden
Square Bounce0.004702025829%6.7Harden
Tetris Generation0.0090129231024%6.0Harden
Tournament Seeding0.0122058024142%4.0Mediumen
Tree Hopping0.02893108432730%6.2Harden
Who Goes There?0.00119136142932%3.8Mediumen
XOR Island0.0027937112935%6.9Harden